ABSTRACT Aiming at the search for a new alternative for the sustainability of the properties in the irrigated areas of the Brazilian Northeast, the objective of this study was to identify the ideal irrigation system and depth for a better yield and quality of pear fruits in the Sub-middle São Francisco region. The experiment was conducted in the commercial orchard of the Frutos do Sol farm, located in the municipality of Petrolina, PE, Brazil, from October 2016 to November 2017. The treatments consisted of four irrigation depths (60; 80; 100 and 120% of crop evapotranspiration - ETc), under two irrigation systems (drip and micro-sprinkler), in two crop cycles of ‘Triunfo’ pear. Yield, average fruit weight, water productivity, pulp firmness and titratable acidity, total soluble solids and lightness of the fruits were analyzed. Irrigation depths of 96.04% and 94.84% ETc promote, respectively, the highest marketable yields for the first (43.48 t ha-1) and second (26.55 t ha-1) cycle of ‘Triunfo’ pear in the Brazilian semi-arid region. Drip irrigation system in the warmer period promotes higher yield. The cultivation of ‘Triunfo’ pear irrigated by drip and micro-sprinkler promotes fruits with good commercial quality in the Brazilian semi-arid region.

RESUMO Visando a busca de uma nova alternativa para sustentabilidade das propriedades dos polos irrigados do Nordeste brasileiro, objetivou-se com este estudo identificar o sistema e a lâmina de irrigação ideal para uma melhor produtividade e qualidade dos frutos da pereira, no Submédio São Francisco. O experimento foi conduzido no pomar comercial da fazenda Frutos do Sol, localizado no município de Petrolina - PE, no período de outubro de 2016 a novembro de 2017. Os tratamentos foram constituídos de quatro lâminas de irrigação (60; 80; 100 e 120% da evapotranspiração da cultura - ETc), sob dois sistemas de irrigação (gotejamento e microaspersão), em dois ciclos de cultivos da pereira ‘Triunfo’. Analisou-se a produtividade, peso médio dos frutos, produtividade de água, bem como a firmeza de polpa e a acidez titulável, sólidos solúveis totais e luminosidade dos frutos. As lâminas de irrigação de 96,04% e 94,84% da ETc proporcionam, respectivamente, as maiores produtividades comerciais para o primeiro (43,48 t ha-1) e segundo (26,55 t ha-1) ciclo de cultivo da pereira ‘Triunfo’ no Semiárido brasileiro. O sistema de irrigação por gotejamento no período mais quente proporciona maior produtividade. O cultivo da pereira ‘Triunfo’ irrigada por gotejamento e microaspersão proporcionam frutos com boa qualidade comercial no Semiárido brasileiro.

ABSTRACT The objective of this study was to evaluate the influence of irrigation systems and water depths on physiological, biochemical and production processes of pear trees grown in the Brazilian semi-arid region. The experimental design was randomized blocks, with 2 × 4 factorial scheme, corresponding to two irrigation systems (drip and microsprinkler) and four irrigation depths (60, 80, 100 and 120% of the crop evapotranspiration - ETc), with four replicates. Water deficit and excess applied to plants are harmful to gas exchange as well as to biosynthesis and accumulation of carbohydrates, amino acids and proteins in leaves, compromising the cultivation cycle of pear plants grown in the Sub-Middle São Francisco region. The irrigation depth of 91.8% ETc promotes the highest production of pear (18.49 kg plant-1) under drip and microsprinkler irrigation systems, under the edaphoclimatic conditions of the Sub-Middle São Francisco region.

RESUMO O objetivo deste trabalho foi avaliar a influência de sistemas de irrigação e lâminas de irrigação sobre processos fisiológicos, bioquímicos e produtivos da pereira cultivada no Semiárido brasileiro. O delineamento experimental foi em blocos casualizados, com fatorial 2 x 4, sendo dois sistemas de irrigação (gotejamento e microaspersão) e quatro lâminas de irrigação (60; 80; 100 e 120% da evapotranspiração da cultura - ETc), com quatro repetições. A deficiência e o excesso hídrico aplicados às plantas são prejudiciais às trocas gasosas, bem como à biossíntese e acúmulo de carboidratos, aminoácidos e proteínas nas folhas, comprometendo o ciclo de cultivo de pereiras cultivadas na região do Submédio São Francisco. A lâmina de irrigação de 91,8% ETc promove a maior produção de pereira (18,49 kg planta-1) sob sistemas de irrigação por gotejamento e microaspersão, nas condições edafoclimáticas do Submédio São Francisco.

ABSTRACT Insects are fundamental to biodiversity conservation in almost all ecosystems, and their population decline, and extinction directly result from environmental impacts. These facts are aggravated by the lack of knowledge of insect biodiversity, the so-called biodiversity deficits, especially the Linnean and Wallacean shortfalls. In freshwater ecosystems, biodiversity loss is higher among aquatic insects, and caddisflies comprise one of the most vulnerable orders. In this way, research focusing on describing new caddisfly species and understanding their distribution ranges will increase knowledge of caddisfly biodiversity. In the past 14 years, the team from the Laboratório de Entomologia Aquática “Prof. Dr. Claudio Gilberto Froehlich” (LEAq, Universidade Federal da Bahia, Brazil) and collaborators have been addressing these issues, resulting in 55 described species of caddisflies. Taxa in other insect orders have also received attention and an additional 16 species have been described (eight mayflies, four stoneflies, four neuropteran spongillaflies, and antlions). Here, eight caddisfly species are described and illustrated (Atopsyche froehlichi sp. nov., Austrotinodes zeferina sp. nov., Cernotina kariri sp. nov., Neoathripsodes froehlichi sp. nov., Notalina claudiofroehlichi sp. nov., Oecetis marcus sp. nov., Phylloicus froehlichi sp. nov., and Polycentropus claudioi sp. nov.), five of them in honor of LEAq’s patron. In addition, new distributional data are presented for 10 known species. A checklist of the caddisfly fauna of Bahia state is also presented, with 138 species, around 75% and 30% of them recorded and described by the LEAq team, respectively. Currently, for caddisflies, Bahia is the fifth most species-rich state in Brazil, and the first in the Brazilian Northeast region.

Abstract: The aim of this paper is to investigate the determinants of the perceptions of federal deputies in Brazil about the influence of the media on their opinions and votes. The research is based on four rounds of face-to-face surveys applied to representative samples of the members of the Chamber of Deputies between 2011 and 2014. In all, 954 interviews were carried out with federal deputies in office during the 54th Legislature. The results show that media habits, political-ideological factors and sociodemographic characteristics have significant influence on the opinions and votes of federal deputies. More specifically, those who most frequently read political columnists from the nationally-renowned media, who are affiliated with center-right parties and who are new to the Chamber more often affirm that they are influenced by the media. On the other hand, we identified less influence of the media on the deputies who belong to the evangelical caucus of the Chamber and among the older members. Our findings are consistent with theoretical expectations that the media exert influence on legislators through an instrumental effect, compatible with the theory of uses and gratifications.

Resumo: O objetivo deste trabalho é investigar os determinantes da percepção dos deputados federais no Brasil sobre a influência que a mídia tem em suas opiniões e votos. Nosso referencial empírico são quatro rodadas de surveys presenciais aplicados a amostras representativas da Câmara dos Deputados entre 2011 e 2014. Ao todo, foram realizadas 954 entrevistas com parlamentares em exercício durante a 54a Legislatura. Os resultados mostram que o relato de maior influência está associado a hábitos midiáticos, a fatores político-ideológicos e a características sociodemográficas de cada parlamentar. Mais especificamente, registram maior influência da mídia os deputados federais que leem com maior frequência colunistas de política da mídia de referência nacional, os filiados a partidos de centro-direita e os novatos na Câmara. Por outro lado, identificamos menor influência da mídia entre os deputados que integram a bancada evangélica e entre os mais velhos. Nossos achados são compatíveis com as expectativas teóricas de que a mídia exerce influência sobre legisladores por meio de um efeito instrumental, compatível com a teoria de usos e gratificações.

RESUMO O cultivo da cebola na região Nordeste vem ganhando destaque devido às condições edafoclimáticas favoráveis e ao uso de tecnologia. No entanto, o aumento dos custos de produção, as oscilações de preços e a supressão do enxofre nas formulações dos fertilizantes constituem um risco para o produtor. Nesse sentido, objetivou-se avaliar os aspectos produtivos e econômicos da cebola em resposta a adubação com enxofre. Dois experimentos foram realizados de junho a novembro de 2018 e 2019, ambos na Fazenda Experimental Rafael Fernandes, pertencente à Universidade Federal Rural do Semiárido, município de Mossoró, Rio Grande do Norte, Brasil, em Argissolo. O delineamento experimental foi em blocos casualizados com 14 tratamentos e quatro repetições, correspondendo à combinação de duas cultivares de cebola e sete doses de enxofre. Foram avaliados: teor de enxofre na folha diagnóstica, rendimento de bulbos, custos operacionais totais, receita bruta, receita líquido, taxa de retorno e índice de lucratividade. Independente da cultivar utilizada, os custos dos insumos somam as maiores despesas, atingindo valores aproximados de 60,6 e 48,4% do custo operacional total para as cultivares Rio das Antas e IPA 11, respectivamente. A Rio das Antas foi mais eficiente no uso do enxofre, obtendo maior rendimento e receita líquida. O fornecimento de 34 kg ha-1 de enxofre proporcionou rendimento e receita líquida máxima para a Rio das Antas. A aplicação de enxofre não influenciou o rendimento da cultivar IPA 11.

ABSTRACT The cultivation of onion in the Brazilian Northeast region has been gaining prominence due to the favorable edaphoclimatic conditions and the use of technology. However, the increase in production costs, price fluctuations and the suppression of sulfur in fertilizer formulations constitute a risk for the farmers. Thus, the aim of this study was to evaluate the productive and economic aspects of onion production as a response to sulfur fertilization. Two experiments were carried out from June to November 2018 and 2019, at the Rafael Fernandes Experimental Farm, belonging to the Universidade Federal Rural do Semi-árido, in the municipality of Mossoró, Rio Grande do Norte, Brazil, in an Ultisol. The experimental design was randomized complete blocks with 14 treatments and four replicates, corresponding to the combination of two onion cultivars and seven doses of sulfur. The following characteristics were evaluated: sulfur content in the diagnostic leaf, bulb yield, total operating costs, gross revenue, net revenue, rate of return and yield index. Regardless of the cultivar, input costs add up to higher expenses, reaching approximate values of 60.6 and 48.4% of the total operating cost for the Rio das Antas and IPA 11 cultivars, respectively. Rio das Antas was more sulfur efficient, achieving greater bulb yield and net revenue. The 34 kg ha-1 sulfur dose promoted maximum yield and net revenue for Rio das Antas. The application of sulfur did not influence the yield of the IPA 11 cultivar.

RESUMO Este artigo analisa o efeito de notícias com erros gramaticais, corrigidas ou atualizadas sobre a percepção de leitoras e leitores em relação à credibilidade da informação e sobre sua intenção de comportamento associada ao conteúdo dessa notícia. Investigamos esses efeitos em uma notícia sobre a vacinação contra a febre amarela junto a uma amostra de 1.648 indivíduos. Com base num desenho experimental, mensuramos os efeitos do veículo (G1 ou WhatsApp) e de cinco versões de um texto. Os achados mostram que o mesmo texto atribuído ao G1 ou a uma mensagem de WhatsApp foi percebido como mais credível no primeiro caso. Erros gramaticais, atualizações e correções em geral não afetaram a credibilidade da notícia nem a intenção de vacinação das participantes. Quando a notícia é atribuída ao G1, porém, a credibilidade da mensagem “corrigida” é significativamente maior que a credibilidade da mensagem com erros graves de gramática.

ABSTRACT This article analyzes the effect of news reports containing grammatical errors that have been corrected or updated, how readers perceive the credibility of this information, and their behavioral intention with the content in the news reports. We investigated these effects in a report on yellow fever vaccination with a sample of 1.648 individuals. Based on an experimental research design, we measured the effects of the vehicle (G1 or WhatsApp) and five versions of a text. The findings show that the same text assigned to G1 or a WhatsApp message was perceived as more credible in the first case. Grammatical errors, updates, and corrections, in general, did not affect the credibility of the news or the intention to be vaccinated. When the news is attributed to the G1, however, the credibility of the “corrected” message is significantly higher than the credibility of the message with serious grammar errors.

RESUMEN Este artículo analiza el efecto de noticias con errores gramaticales, corregidas o actualizadas sobre la percepción de las lectoras y de los lectores con relación con la credibilidad de la información y sobre su intención de comportamiento asociada al contenido de esa noticia. Investigamos esos efectos en una nota sobre la vacunación contra la fiebre amarilla con una muestra de 1.648 individuos. A partir de un diseño experimental, medimos los efectos del medio (G1 o WhatsApp) y de cinco versiones de un texto. Los hallazgos muestran que el mismo texto asociado a G1 o a un mensaje de WhatsApp se percibió como más creíble en el primer caso. Los errores gramaticales, actualizaciones y correcciones generalmente no afectaron la credibilidad de la noticia ni la intención de vacunación. Cuando la noticia se atribuye al G1, todavía, la credibilidad del mensaje “corregido” es significativamente mayor que la credibilidad del mensaje con graves errores gramaticales.

RESUMO Os micronutrientes constituem estruturalmente diversas enzimas e atuam como cofatores de proteínas importantes para manter o funcionamento celular, com isso contribuem com o crescimento e aumento da produtividade das culturas. O objetivo deste estudo foi avaliar o teor foliar, o crescimento, o acúmulo de micronutrientes, a classificação e a produtividade da cebola em função da adubação com boro, cobre, zinco em dois anos de cultivo. Os experimentos foram realizados nos períodos de junho a novembro de 2018 e de 2019, em solo classificado como Argissolo, ambos na Fazenda Experimental Rafael Fernandes, pertencente à Universidade Federal Rural do Semiárido, no município de Mossoró, Rio Grande do Norte. O delineamento experimental foi em blocos casualizados com 15 tratamentos e quatro repetições. Os tratamentos foram constituídos pelas doses de B, Cu e Zn em dois experimentos. Foram avaliados os teores de B, Cu e Zn na folha diagnose, crescimento, acúmulo de B, Cu e Zn na folha, bulbo e total, classificação de bulbos e produtividade comercial, não comercial e total. A aplicação de B, Cu e Zn não influenciou o número de folhas, relação de formato de bulbo, massa seca de folha, bulbo, e total e a produtividade da cebola. A aplicação de B, Cu e Zn, respectivamente nas doses de 1-2-1 kg ha-1 favoreceu maior acúmulo de B, Zn e Cu no bulbo. Maior número de folhas, massa seca de folhas, massa seca de bulbo e massa seca total, classe 1 e produtividade não comercial foram produzidos no Experimento 1.

ABSTRACT Micronutrients structurally constitute several enzymes and act as a cofactor of essential proteins to maintain cell function, thereby contributing to crop growth and yield. The objective of this study was to evaluate the leaf content, growth, accumulation of micronutrients, classification and yield of onion as a function of fertilization with boron, cooper and zinc in two years of cultivation. The experiments were carried out from June to November in 2018 and 2019, in a soil classified as Ultisol, both at the Rafael Fernandes Experimental Farm, belonging to the Universidade Federal Rural do Semiárido, in the municipality of Mossoró, Rio Grande do Norte, Brazil. The experimental design was in randomized blocks with 15 treatments and four replicates. The treatments consisted of application of doses of B, Cu and Zn, in two experiments. Contents of B, Cu and Zn in the diagnostic leaf, growth, accumulation of B, Cu and Zn in the leaf, bulb and total, classification and commercial, non-commercial and total yields were evaluated. Application of B, Cu and Zn did not influence the number of leaves, relation of bulb shape, leaf, bulb, and total dry mass and yield of onion. Application of B, Cu and Zn, respectively at doses of 1-2-1 kg ha-1 favored a greater accumulation of B, Zn and Cu in the bulb. Higher number of leaves, leaf dry mass, bulb dry mass, total dry mass, class 1 bulbs and non-commercial yield were produced in Experiment 1.

ABSTRACT. The growth of generations of the Genomar Supreme Tilapia (GST) strain, specifically G20 and G25, was evaluated. Tilapias 8 g were reared in a recirculating aquaculture system with 0.25 m³ tanks, 80 fish m-³, with four replicates. During growth, eight fish from each tank were weighed and measured at day 1, 30, 60, 90, 120, 150, 180 and 210. Survival, weight gain, feed conversion and batch homogeneity were determined. Weight-age data were fit to Gompertz model. In addition, absolute and relative growth rates and weight and age at inflection were determined. Final weight showed 26.7% higher in G25 when compared to G20 (920.05 and 725.87 g, respectively). The feed conversion and homogeneity indexes were better in G25 than G20. The estimate of asymptotic weight was higher in G25 (1202.0 g) when compared to G20 (912.7 g). G20 presented smaller weight (335.76 g), age (108.87 days) and absolute growth rate (4.87 g day-1) when compared with G25 (442.19 g, 113.77 days and 6.41 g day-1). Carcass characteristics were similar, but G25 presented about 25% higher fillet weight than G20. After five years in the GST breeding program, results indicated that a sustained improvement of harvest weight was achieved, as well as 6 to 10% gain in performance by generation.

Abstract In the present study, we evaluated the physicochemical characteristics (color, humidity, soluble solids, free acidity, pH, ash content, carbohydrate content, and 5-HMF) and antioxidant activity (Folin-Ciocalteu reagent and DPPH free radical scavenging) of honey samples produced by different species of Meliponinae subfamily (n = 16) and A. mellifera (n = 16) from the Eastern Brazilian Amazon region. Considering global averages, the stingless-bee honey had high acidity (93.45 mEq kg-1), high humidity (27.43%), low content of reducing sugars (55.65%), and darker colors (Pfund scale – 162.17 mm), when compared with A. mellifera honey (62.96 mEq kg-1, 19.35%, 65.70% and 68.43 mm for the respective parameters). Furthermore, more than 50% of samples of stingless-bee honey had values of 5-HMF above that proposed by Codex Alimentarius (max. 80 mg kg-1). The two types of honey investigated showed similar results for total phenolic compounds and antioxidant activity. The principal component analysis (PCA) of the physicochemical characteristics of the honey samples, showed that the A. mellifera samples formed a differentiated group, while the multi-species Meliponinae samples were more scattered along the PCA axes. The distinctive characteristics of stingless-bee honey compared to A. mellifera honey produced in the same region, reinforces the need for specific regulations for honey produced by stingless-bees.

Abstract Introduction Spinal anesthesia combined with sedation and general anesthesia combined with epidural are two techniques often used for patients undergoing abdominal hysterectomy. There is no consensus that one of these techniques is superior regarding the perception of patients towards the quality of postoperative recovery. This observational cross-sectional study aimed to assess the quality of postoperative recovery in women undergoing open abdominal hysterectomy by comparing both anesthetic techniques. Method We recruited 162 women aged between 30 and 74 years to be submitted to abdominal hysterectomy. The anesthetic technique used followed the preference of the attending anesthesiologist without interference of the investigators. After applying the exclusion criteria, 80 patients underwent spinal anesthesia combined with sedation (Group 1) and 62 women underwent epidural anesthesia combined with general anesthesia (Group 2). The quality of postoperative recovery was evaluated using the questionnaire Quality of Recovery-40 (QoR-40) completed 24 hours after the end of the surgery. Results Eighty patients in Group 1 answered the QoR-40 questionnaire with an average rating of 179.4 points, median of 186.5, standard deviation of 17.4 and a confidence interval of 3.8. The 60 patients in Group 2 answered the QoR-40 with an average of 174.9 points, median of 178 points, standard deviation of 16 points and a confidence interval of 4.0 (p= 0.024). Conclusion Women who received spinal anesthesia combined with sedation considered quality of postoperative recovery better.

ABSTRACT In regions with high temperatures, carrot cultivation is impracticable, as high temperatures tend to reduce yield and quality of the product. However, with the advent of summer cultivars, carrot cultivation in these regions has become viable. The aim of this work was to evaluate the performance of ten carrot cultivars in different planting seasons. The experiments were carried out at the Rafael Fernandes Experimental Farm of the Federal Rural Semiarid University (UFERSA). The experiments were carried out in May, June, July and August of 2017. The experimental design was a randomized block with ten treatments and four repetitions. The characteristics that were evaluated were the root classification (long, average and short roots); commercial, non-commercial and total yield; dry plant weight and root fresh weight. Both the planting season and the cultivar played important roles in agronomic performance throughout the experimental period. In May and June, the highest average yields and plant growth were obtained (43 and 45 t ha-1 yield, respectively). Hybrid cultivars showed better performance than open-pollinated cultivars in terms of yield. The Brasília, BRS Planalto, and Kuronan varieties showed poor performance in all the evaluated characteristics.

Abstract Introduction Spinal anesthesia combined with sedation and general anesthesia combined with epidural are two techniques often used for patients undergoing abdominal hysterectomy. There is no consensus that one of these techniques is superior regarding the perception of patients towards the quality of postoperative recovery. This observational cross-sectional study aimed to assess the quality of postoperative recovery in women undergoing open abdominal hysterectomy by comparing both anesthetic techniques. Method We recruited 162 women aged between 30 and 74 years to be submitted to abdominal hysterectomy. The anesthetic technique used followed the preference of the attending anesthesiologist without interference of the investigators. After applying the exclusion criteria, 80 patients underwent spinal anesthesia combined with sedation (Group 1) and 62 women underwent epidural anesthesia combined with general anesthesia (Group 2). The quality of postoperative recovery was evaluated using the questionnaire Quality of Recovery-40 (QoR-40) completed 24 hours after the end of the surgery. Results Eighty patients in Group 1 answered the QoR-40 questionnaire with an average rating of 179.4 points, median of 186.5, standard deviation of 17.4 and a confidence interval of 3.8. The 60 patients in Group 2 answered the QoR-40 with an average of 174.9 points, median of 178 points, standard deviation of 16 points and a confidence interval of 4.0 (p= 0.024). Conclusion Women who received spinal anesthesia combined with sedation considered quality of postoperative recovery better.

ABSTRACT In regions with high temperatures, carrot cultivation is difficult because high temperatures tend to reduce the size and pigmentation of the root and, consequently, the yield and quality of the product. However, with the advent of summer cultivars, the cultivation of quality carrots under high temperatures has been viable. The aim of this work was to evaluate the postharvest quality of ten carrot cultivars as a function of different planting dates. The experiments were carried out on the Rafael Fernandes Experimental Farm of the Universidade Federal Rural do Semi-Árido (UFERSA). Four experiments were carried out in May, June, July and August 2017. The experimental design was a randomized block with ten treatments and four replications. The following was evaluated: white halo percentage, soluble solids content, total soluble sugars, total titratable acidity, soluble solids/titratable acidity ratio and beta-carotene content. The interaction between the carrot cultivars and planting date had a significant influence on the postharvest quality of carrot roots. The hybrid cultivars had an overall better post-harvest quality. The carrots sown in July had better quality traits; however, they were more affected by the “white halo” disorder.

RESUMO Objetivou-se avaliar a eficiência da utilização de fósforo por cultivares de milho para produção de espigas verdes. Foram conduzidos dois experimentos, um no período chuvoso (março a junho) e outro no período seco (agosto a dezembro), ambos na Fazenda Experimental Rafael Fernandes, na comunidade de Alagoinha, pertencente à Universidade Federal Rural do Semiárido, no município de Mossoró, RN. Os tratamentos foram constituídos pela combinação de três níveis de fósforo (baixo, médio e alto) e oito cultivares de milho (Dona Josélia, Carrapateira, Pontinha, Cruzeta, Potiguar, BRS 2022, Status e AG 1051). Foi utilizado o delineamento experimental em blocos ao acaso, em esquema fatorial 3 × 8, com quatro repetições. As características avaliadas foram: número e massa total de espigas verde, número e massa de espigas verdes comercializáveis (empalhadas e despalhadas), eficiências agronômica, fisiológica, de produção de espigas, de recuperação e de utilização do fósforo. As cultivares apresentaram melhor desempenho produtivo quando adubadas com fósforo. As cultivares Cruzeta, Potiguar, BRS 2022, Status, AG 1051 e Carrapateira foram as mais eficientes na utilização do fósforo para a produção de milho verde.

ABSTRACT The objective of this study was to evaluate the efficiency of the use of phosphorus by maize cultivars for the production of green ears. Two experiments were carried out, one in the rainy season (March to June) and the other in the dry period (August to December), both at the Rafael Fernandes Experimental Farm, in the community of Alagoinha, belonging to the Universidade Federal Rural do Semiárido, in the municipality of Mossoró, RN, Brazil. The treatments consisted of a combination of three levels of phosphorus (low, medium and high) and eight corn cultivars (Dona Josélia, Carrapateira, Pontinha, Cruzeta, Potiguar, BRS 2022, Status and AG 1051). A randomized block design was used in a 3 × 8 factorial scheme, with four repetitions. The evaluated characteristics were: number and total mass of green ears, number and mass of tradable, stuffed and depleted green ears, agronomic and physiological efficiency of production of recovery and use of phosphorus. The cultivars showed better productive performance when fertilized with phosphorus. The cultivars Cruzeta, Potiguar, BRS 2022, Status, AG 1051 and Carrapateira were the most efficient in the use of phosphorus to produce green maize.

RESUMO Objetivo: traçar o perfil socioeconômico demográfico de pacientes internados com diagnóstico de pé diabético em um hospital terciário de Belém-PA, bem como avaliar os fatores de riscos para amputações de membros inferiores classificando-os de acordo com os critérios de Wagner e PEDIS. Métodos: estudo descritivo, transversal, unicêntrico e analítico realizado mediante questionário estruturado com perguntas objetivas e com posterior análise estatística descritiva de pacientes diagnosticados com pé diabético em um hospital terciário de Belém-PA. Resultados: estudo foi composto por 57 pacientes, com idade variando entre 48 e 84 anos, sendo 66,7% masculino. A renda medida oscilou entre 01 a 03 salários. O Diabetes Mellitus do tipo II foi predominante (86,0%). HAS foi a doença associada mais prevalente (62,3%), seguida da Dislipidemia (52,8%). Havia 35,1% fumantes. O tipo mais comum de pé diabético foi o neuropático (59,6%), seguido pelo infeccioso (50,9%) e o misto (49,1%). O tempo de hospitalização variou entre 03 e 59 dias. 43,1% dos pacientes que foram submetidos a amputações maiores faleceram. Conclusão: a ocorrência de pé diabético foi maior nos pacientes do sexo masculino com mais de 50 anos de idade. Predominaram pacientes de baixa renda e com pouca escolaridade. A maioria dos pacientes foram acometidos por pé diabético do tipo II e padrão infeccioso e, que necessitaram de intervenção. A maioria dos pacientes foi admitido com classificações mais avançadas de Wagner e PEDIS, o que estava associado à altas taxas de amputações, impactando nos desfechos de mortalidade.

ABSTRACT Objective: to assess the socioeconomic and demographic profiles of patients hospitalized with a diagnosis of diabetic foot in a tertiary hospital in Belem-PA, Brazil, as well as to evaluate risk factors for lower limb amputations in such patients, classifying them according to the Wagner and PEDIS classifications. Methods: we conducted a descriptive, cross-sectional, unicentric, and analytical study carried out through a structured questionnaire. Results: the study consisted of 57 patients, aged between 48 and 84 years old, 66.7% being male. The average income ranged between one and three (61.4%) minimum wages and below one minimum wage (31.6%). Type II Diabetes Mellitus was predominant (86.0%). Concerning comorbidities, arterial hypertension displayed the highest proportion (62.3%), followed by dyslipidemia (52.8%). Smokers comprised 35.1% of the sample. Infectious diabetic foot (50.9%) and mixed diabetic foot (49.1%) were the most common. Of the 20 patients with previous amputation, 90% had undergone minor amputation, and 10%, major ones. Callosity (92.6%) was the most prevalent deformity. Fifty-four (94.7%) patients underwent surgery, those being debridement (24.1%), minor amputation (37.0%) and major amputation (38.9%). During hospitalization, 78.9% of individuals did not require ICU stay. Hospitalization time varied between three and 59 days, and 78.9% of hospitalized patients did not progress to death, but 43.1% of patients submitted to major amputations died. Conclusion: patients with diabetic foot followed-up have a low socioeconomic profile; most of them underwent surgical procedures, whether major or minor, due to the higher prevalence of infectious diabetic foot and/or non-adherence to non-operative treatment.